Fresno Temperatures: Averages by Month





The numbers here tell you how hot and cold the weather usually is in Fresno, California during each month of the year.

The average high and low temperatures are listed below for the city, in both degrees Fahrenheit and Celsius.

Maximums and minimums are only part of the temperature picture. To fill in the rest, there's information on how many days a month get above or below a given temperature.

To find out how often it rises over 80, 90 or 100 °F monthly and annually in Fresno, scroll down farther. There are also counts of nights with cool temperatures.

The first set of high and low temperatures are averages for 2010 to 2019. Everything else here is based on 1991 to 2020 weather.

10-year temperature averages for Fresno, 2010 to 2019
High °F Low °F   High °C Low °C
59 41 January 15 5
63 43 February 17 6
70 47 March 21 9
76 52 April 25 11
83 57 May 28 14
94 65 June 35 18
100 70 July 38 21
99 68 August 37 20
93 64 September 34 18
81 55 October 27 13
67 46 November 20 8
58 40 December 14 4
79 54 Year 26 12
30-year temperature averages for Fresno, 1991 to 2020
High °F Low °F   High °C Low °C
55 41 January 13 5
61 43 February 16 6
68 47 March 20 9
74 51 April 23 11
83 58 May 28 14
91 64 June 33 18
98 69 July 37 21
97 68 August 36 20
91 63 September 33 17
79 55 October 26 13
65 45 November 18 7
55 40 December 13 4
76 54 Year 25 12

Days of Hot Weather in Fresno

Fresno summers are hot, when all but a few days have highs over 90 and many top 100 Fahrenheit. The 90-degree weather usually begins in April and can linger into October. From May to September, the San Joaquin Valley city averages 38 days with temperatures of 100 °F or more.

Days per month in Fresno of at least 80, 90 or 100 °F
  80 °F
27 °C
90 °F
32 °C
100 °F
38 °C
January 0 0 0
February 0 0 0
March 3 0 0
April 9 2 0
May 22 9 1
June 28 20 7
July 31 30 14
August 31 29 12
September 28 20 4
October 17 4 0
November 1 0 0
December 0 0 0
Year 170 113 38

How Often Fresno Has Cool Temperatures

Most nights at Fresno never get colder than 40 °F. From November to February, the area averages 11 nights with frost, but even then it always warms up to at least 40 degrees the next day. It's not normal for Fresno to get as cold as 20 °F (-8 °C).

Days per month on average in Fresno when the minimum temperature drops to at least 40 or 32 °F
  32 °F
0 °C
40 °F
4 °C
January 4 17
February 1 11
March 0 5
April 0 1
May 0 0
June 0 0
July 0 0
August 0 0
September 0 0
October 0 0
November 1 8
December 5 19
Year 11 61
References

Jay Lawrimore, Ron Ray, Scott Applequist, Bryant Korzeniewski, Matthew Menne. 2016. Global Summary of the Month and Year, Version 1.0. NOAA National Centers for Environmental Information.

NOAA National Centers for Environmental Information (NCEI). Climate Normals.

California Temperatures
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